History buffs might not know this already but it seems as if this week—April 14th to April 20th—might be the worst week in American history. Things like President Lincoln being assassinated, the Bay of Pigs invasion, the Columbine shooting, the Virginia Tech school shooting, the Oklahoma City bombing, the Boston Marathon bombing, etc. all happened during this week in history. Of course, if you look back far enough into history, you’re going to find something terrible for every day because, well, terrible things happen all the time. But you have to admit, this week just isn’t a good week for American history.

From an Esquire profile of Frank DeAngelis, the Columbine principal retiring this year after 35 years at the school:

Mr. D’s job of reconciling the past with the present and the future is a difficult one. Because, as the students will readily attest, people are uncommonly weird about Columbine. Tour buses stop to let their riders snap pictures during the school day. Visitors take selfies in front of the school’s sign. Travelers who’ve gotten lost looking for the memorial end up wandering around the parking lot. The memorial was built in 2007, in nearby Clement Park. It was set away from the school to deter tourists from bothering students, but that didn’t work. They keep coming. To them, the school itself is the monument.